Carbureter and like device for mixing gas or vapor and air.



P. B. w. KERSHAW. GARBUBETER AND LIKE DEVICE FOR MIXING GAS 0R VAPO 930,483.

R AND AIR.

APPLICATION 11.31) APR.6,1906.

Patented Aug. 10, 1909.

,uNiT n STATES PATENT onnrca.

PERCY BERESFORD WRIGHT KEnsH wfoF LoNDoN, ENGLAND, ASSIGNORTO OWEN Davin LUCAS, or LoNDoN, ENGLAND. I

easements minim mivrea roe me one on vases AND are;

To' all whom it may concern:

Be it known that I, PERCY Bmin'sronn WRIGHT KERsH'Aw, a subject of His Ma'esty the King of Great Britain, residing at ondon, in. the Kingdom of England, have invented certain new and useful Improvements in Carbureters and Like Devices for -Mixing Gas or Vapor and Air, of whic'hthe effect it will now be described more fully with reference to the accompanying drawings, in which I Figure 1 is an elevation of a carbureter embodying the features of the invention; Fig. 2 is a longitudinal section taken approximately on the line 22 of Fig. 1; Fig. 3 is a transverse section, taken approximately on the line 33 of Fig. 2; Fig. 4 is a face view of one of the disks emplo ed; Fig. 5 is a face view of the other disk; l ig. 6 is a section of disks of a somewhat modified form; and Fig.

7 is a face view of one of thesaid modified disks. Fig. 2 is a view on an enlarged scale showing particularly the means for rotating the disks and for controlling the valve of the fuel supply.

. shaft;

said su ply passage'cons'tituti-ng a ci: e are centrifugal disks mountedon a is a mixing chamber or casing, b a supply pipe forming one part of the supply passage leading thereto, andc the rotary er; of

said hollow shaft; f is a fan; gis a valve for automaticall controlling the supply of fluid, and h a ban -controlled throttle valve.

The mixing chamber a is open at both ends and is (provided with two spiders a and a adapte to support the pivots or bearings on which the rotary arts of the carbureter turn. One of suc bearings comprises a Specification of Letters'Patent. a licat on mm 1 m a, 19cc. sem1No.'s1o,aeo.

Patented Aug. 10, 1909.

the nozzle so as to be capable of freely rotat-' ing. thereon, while its other end is secured fast to the disk 1. The centrifugal disks (1, e have their ad'- jacent faces ,closely infcontact with each other, and are secured firmly' together by screws or the like. Recesses-d' e in the inner faces of both these disks register with each other to form a central cavity from which extend the curved helical grooves (2 Such grooves consist of mere scratches in the face of the disk d and are peferabl of approximately the form shown in 'ig. 4. The other disk c has on its side remote from the disk d a recessed boss-e into which penetrates a pin a carried by the spider a and constituting the other bearing above re.

ferred to. Between the peripheries of the.

- said disks and the casing a is an annular-interspace a of liberal capacity through which the air, drawn in through the open outer end of of the casing, asses to the cylinders of the engine by way of the as irator tube a which is secured to the-engine y means of a flange 0. and bolts a g It will be seen that as the disks are rapidly rotated, the hydro-carbon fluid which flo'ws by wa of the tubular shaft into the central space etween the disks, will be thrown outward by centrifugal force and will emer e from between the peripheries of the disks in the form of a ring or corona of mist or of exceedingly fine spray which will be cut at every point by t e air current traveling in a direction arallel with the tubular shaft, and will thus ecome intimately mixed withsaid air current and carried along therewith.

The current of air, before reaching the disks, passes through and over the fan f and rotates the same for the double purpose of imparting the requisite rotary motion to the disks and of actuating the automatic valve '9 which controlsa central aperture (i in the disks d. Said fan is mounted fast on the hollow shaft 0 through the intervention of a sliding sleeve f whose position on the shaft is controlled by as ring f Rods g g latter, cause said fan to slide in opposition to the resistance of its spring toward the disk (1 and will thereby 0 en the valve g through the interventiono the connecting rods 9.

. At the end of the suction stroke, however,

the spring will force the fan in the opposite direction, and will thereby close the valve 9. Thisvalve would usually only be required in the case of engines in which there is an appreciable interval of time between the suction strokes.

The throttle valve h, which is normally held open by a spring h, is provided with means (not shown) of any suitable kind, for enabling it to be partially or entirely closed, either by hand or automatically, whenever desii'ed.

The invention is not confined to the precise details of construction above described and shown, which may be varied in a number of ways without delparting from the nature of Z e invention. .or instance, in place of aranging the fan f on the side of the disks (1,6 remote from the cylinders, as shown, it may obviously be located on the side thereof nearest to the cylinders, as .for example within the aspirator tube a". Moreover, where the carbureter is used in connection with an engine having more than one working cylinder, the valve 9 may in some cases be dis ensed with; Furthermore, the centrifuga disks may be constructed in the mannershown in Figs. 6 and 7, instead of that exemplified in Fig 2. In said Figs. 6 and 7 the hollow shaft 0 is dispensed with and the disk d has a prolonged boss (1 which engages directly with the nipple b. The

four screws shown in Fig. 3 for connecting the two disks together are also dispensed with, and in lieu thereof a single centralscrew (it is'employed for' the same purpose,

said screw engaging with an internal flange d: in the boss (1 and with the disk e. A number of holes (1 in the flange d permit of the passa e therethrou h of the hydro-carbon.

An. a vantage of t is arrangement is that space in the groove'part of the disk need not be taken up by screws, and therefore the ghole face of the disk can be grooved, as in The fan f may be provided with any suitable means (not shown) for enabling the itch of'its vanes to be adjusted as desired. 'Ioreover said fan may be replaced or supplemented by a mechanical device connected with some moving part of the engine for'rotatingthe disk; or other means may be employed.

One of the advantages attained by the above described invention is that the float chamber heretofore found necessary may be dis .ensed with.-

at I claim and desire to secure by Letters Patent of the United States is 1. A carbureter comprising a mixing chamber, a rotary disk having capillary passages extending from the center of the disk to the eriphery thereof, means for supplying 11 ro-carbon to the said assages, an air supp y for the mixing cham er, and means for rotating the disk to cause the hydro-carbon to be thrown centrifugally from the peripheily thereof.

2. carbureter comprising a mixing chamber to which air is admitted, a rotary disk provided with capillary grooves extending from its center to its periphery, means for supp ying hydro-carbon to the center of the d1s and means for rotating the disk whereb the hydro-carbon is thrown from the p eriphery thereof in a finely divided condition and mixed with the air supplied to the mixin chamber.

3.. carbureter comprising a mixing chamber, a rotary disk mounte therein provided with grooves extending from its center to the periphery, means for en plying hydrocarbon to the center of the isk, means for conveying air through the mixing chamber and a fan in the ath of the air, operatively connected with tlie disk and rotated by the air current, whereby the hydro-carbon is thrown centrifugally from the periphery of the disk.

4. A carbureter comprising a mixing chamber through which air is drawn or forced, disks secured to each other and having a space between them for the passage of fuel, means for feeding fuel between the disks and means for rotating the disks to cause the fuel to pass to the mixing chamber centrifugally in the form of a mist or fine 8 my in the path of the air passing through the chamber.

5. A carbureter comprising a ,llllXlIlg chamber through which air is drawn or .forced, rotary disks having between them grooves through which hydro-carbon is supplied, means for feeding hydro-carbon to said grooves and means for rotating the dlSkS to cause the hydro-carbon to be thrown centrifugally into the path of the air passing through the mixing chamber.

6. carbureter comprising a mixing chamber through which air is drawn or forced, a rotary disk to which fuel is supplied and which acts centrifugally to throw hydrocarbon into the path of the air assing through themixin -chamber and a an operatively connected with the disk and actuated by air assing through the chamber 7. A car ureter comprising. a mixing chamber through which air is drawn or In testimony: whereof I have hereunto set forced, a disk provided with grooves extendmy hand in presence of two subscribing wit- 1' ing from its center to its periphery, means nesses this 28th day of March 1906. forsu pplying fuel to the central portion of 5 the1-d1s va. valve controlling the su p13 of PERCY BERESFOBD WRIGHT W.

fuel and a fan operatively connecte to the- Witnesses:

valve and disk to rotate the disk and to A. F. SPOONER, actuate the valve. H. L. PLAYER. 

